The E visa category includes treaty traders and investors who come to the United States under a treaty of commerce and navigation between the United States and the country of which the treaty trader or investor is a citizen or national. This category also includes Australian specialty occupation workers.
Naturalization is the process to voluntarily become a U.S. citizen if you were born outside of the United States. In general, you may be eligible if you can show continuous U.S. residence for three to five years, are at least 18 years old, and demonstrate good moral character and loyalty to the U.S. Constitution. You must also take the English and civics test, unless you qualify for an English language exemption or a medical disability exception.
If you were born outside of the United States, there are two general ways to obtain U.S. citizenship through U.S. citizen parents. You can acquire U.S. citizenship at birth or you can derive citizenship from your parents after your birth but before the age of 18.
It is important to keep your Green Card (USCIS Form I-551 or Permanent Resident Card) up-to-date. Without a valid Green Card, it may be difficult for you to prove that you are a lawful permanent resident and could affect your ability to travel or to prove your authorization to live and work in the United States.